Vehicle.



No. 812,037. PATENTED FEB. 6, 1906. J. H. HANSON 8; J. J. PETRABURG.

VEHICLE.

APPLIOATION rum) 1 33.23. 1905.

14 mmw UNITED STATES PATENT OFFICE.

JOHN H. HANSON AND JOHN J. PETRABORQ OF AITKIN, MINNESOTA.

VEHICLE.

Specification of Letters Patent.

Patented Feb. 6, 1906.

To all whom it may concern:

Be it known that we, JoHN H. HANsON and JOHN J. PETRABORG, citizens ofthe United States, and residents of Aitkin, in the county of Aitkin andState of Minnesota, have invented a new and Improved Vehicle, of whichthe following is a full, clear, and exact description.

Our invention relates to vehicles, and more IO particularly to therunning-gear thereof. Its principal object is to equalize the movementof said running-gear.

Reference is to be had to the accompanying drawings, forming a part ofthis specificar 5 tion, in which similar characters of referenceindicate corresponding parts in all the views.

Figure 1 is a bottom plan view of a vehicle embodying one form of ourinvention. Fig. 2 is a side elevation thereof, showing the 20 frame in anormal or horizontal position.

Fig. 3 is a similar view with the frame inclined and Figs. 4 and 5 aresectional details on the lines 4 4. and 5 5, respectively, of Fig. 1.

designates the body of a vehicle, which 2 5 has projecting from itssides and ends at or near their centers pairs of trunnions or pivotmembers 11 11 and 12 12, respectively. Upon the trunnions 11 are mountedopposite side bars 13 13, while upon the trunnions 12 are 0 pivoted endbars 14 14. The bars extend from the trunnions into proximity with oneanother and are pivotally connected to furnish an equalizing-frame. Inthe present instance divided sockets 15 are secured upon 3 5 theextremities of the end bars and receive balls 16, carried upon the endsof the side bars, so that upon the movement of any portion of thisequalizing-frame the other elements may rock in unison upon the other 0trunnions. Adjacent to the connections between the bars are mountedsupports for the vehicle, which may consist of either Wheels or runnerscarried by axles 17, one of which is shown as projecting from a bolster18, se- 5 cured to an end bar, while the other axle may be joined to theopposite end bar through a fifth-wheel 19.

Considering, for example, that three of the vehicle wheels or supportsare resting u on an elevated surface, while the fourth is 1n adepression below said surface, it will be seen that the side and endbars, which converge at this lowered wheel, will act as levers fulcrumedat their opposite ends, and since the vehicle-body is attached to themat points substantially midway of their length its downward movementwill be but half that of the wheel and its angular movement butone-quarter of that, which would result in absence of our system ofconnecting the frame members. In consequence of the distribution of loadthe power required to raise the wheel from the depression will bereduced, and the lessening of the movement of the body will minimize thejolting effect and the strain upon the vehicle. It will thereforerequire less power to propel said vehicle, will lengthen its life, andrender it more easy running. Used in connection with automobiles it willrelieve the engine and its associ- 7o ated parts to a great extent fromthe ordinary wear and tear incurred. Obviously it will greatly reducethe liability of upsetting the vehicle or displacing its load.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent 1. The combination with a vehicle-body, of sidebars and end bars pivotally connected at their ends to one another, andeach pivottally connected intermediate its ends to the vehicle-body.

2. The combination with a vehicle-body, of side bars and end bars eachpivoted centrally to the respective sides and ends of the 8 5vehicle-body, and being pivotall connected withone another, and supportsfor the vehicle carried by sundry of said bars.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

JOHN H. HANSON. JOHN J. PETRABORG. Witnesses:

W. H. HARRISON, B. J. REoK.

